Class 10 Light Reflection and Refraction MCQ. We covered all the Class 10 Light Reflection and Refraction MCQ in this post for free so that you can practice well for the exam.
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MCQ on Light Reflection and Refraction for Class 10 Students
The muscular diaphragm that controls the size of the pupil is
(a) cornea
(b) ciliary muscles
(c) iris
(d) retina
Option c – iris
Having two eyes facilitates A: Increasing the field of view B: Bringing a three-dimensional view C: Developing the concept of distance/size Then the correct option is/are
(a) A only
(b) A and B only
(c) B only
(d) A, B, and C
Option d – A, B, and C
The black opening between the aqueous humor and the lens is called
(a) retina
(b) iris
(c) cornea
(d) pupil
Option d – pupil
Near and far points of a young person’s normal eye respectively are
(a) 0 and infinity
(b) 0 and 25 cm
(c) 25 cm and infinity
(d) 25 cm and 150 cm.
Option c – 25 cm and infinity
The defect of vision in which the person is able to see distant objects distinctly but cannot see nearby objects clearly is called
(a) Long-sightedness
(b) Far-sightedness.
(c) Hypermetropia
(d) All above
Option d – All above
The ability of the eye lens to adjust its focal length to form a sharp image of the object at varying distances on the retina is called
(a) Power of observation of the eye
(b) Power of adjustment of the eye
(c) Power of accommodation of the eye
(d) Power of enabling the eye
Option c – Power of accommodation of the eye
No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be
(a) either plane or convex
(b) plane only
(c) concave
(d) convex only
Option a – either plane or convex
Contact lenses are made from
(a) polyvinyl chloride
(b) polystyrene
(c) Lucite
(d) Teflon
Option c – Lucite
Due to the contraction of the eyeball, a long-sighted eye can see only
(a) farther objects which are corrected by using a convex lens
(b) farther objects which are corrected by using a concave lens
(c) nearer objects which are corrected by using a convex lens
(d) nearer objects which are corrected by using a concave lens
Option a – farther objects which are corrected by using a convex lens
When a ray of light enters a glass slab, then
(a) only the frequency changes
(b) frequency and velocity change
(c) frequency does not change
(d) frequency and wavelength change
Option c – frequency does not change
A person is unable to read a newspaper without his glasses. He is most probably suffering from
(a) myopia
(b) presbyopia
(c) astigmatism
(d) hypermetropia
Option d – hypermetropia
When white light enters a prism, it gets split into its constituent colors. This is due to the
(a) different refractive index for the different wavelengths of each color
(b) each color has the same velocity in the prism.
(c) prism material has high density.
(d) Scattering of light
Option a – different refractive index for the different wavelengths of each color
The air layer of the atmosphere whose temperature is less than the hot layer behaves as optically
(a) denser medium
(b) rarer medium
(c) inactive medium
(d) either denser or rarer medium
Option a – denser medium
The refraction of light by the earth’s atmosphere due to variations in air density is called
(a) atmospheric reflection
(b) atmospheric dispersion
(c) atmospheric scattering
(d) atmospheric refraction
Option d – atmospheric refraction
The deflection of light by minute particles and molecules of the atmosphere in all directions is called …….. of light.
(a) dispersion
(b) scattering
(c) interference
(d) Tyndall effect
Option b – scattering
One cannot see through the fog, because
(a) the refractive index of the fog is very high
(b) light suffers total reflection at droplets
(c) the fog absorbs light
(d) light is scattered by the droplets
Option d – light is scattered by the droplets
Myopia and hypermetropia can be corrected by
(a) Concave and a plano-convex lens
(b) Concave and convex lens
(c) Convex and concave lens
(d) Plano-concave lens for both defects.
Option b – Concave and convex lens
Bi-focal lenses are required to correct
(a) astigmatism
(b) coma
(c) myopia
(d) presbyopia
Option d – presbyopia
The defective eye of a person has near point 0.5 m and point 3 m. The power for corrective lens required for (i) reading purpose and (ii) seeing distant objects, respectively are
(a) 0.5 D and +3D
(b) +2D and -\(\frac{1}{3}\) D
(c) -2D and +\(\frac{1}{3}\)D
(d) 0.5 D and-3.0 D
Option b – +2D and -\(\frac{1}{3}\) D
The image formed on the retina of the human eye is
(a) virtual and inverted
(b) real and inverted
(c) real and erect
(d) virtual and erect
Option b – real and inverted
The outside rearview mirror of modern automobiles is marked with the warning “objects in mirror are closer than they appear”. Such mirrors are
(a) plane mirrors
(b) concave mirrors with very large focal lengths
(c) concave mirrors with very small focal lengths
(d) convex mirrors
Option d – convex mirrors
The phenomenon of mirage occurs due to which one of the following?
(a) Polarisation of light
(b) Dispersion of light
(c) Diffraction of light
(d) Total internal reflection of light
Option d – Total internal reflection of light
The blackboard seems black because it
(a) reflects every color
(b) does not reflect any color
(c) absorbs black color
(d) reflects black color
Option a – reflects every color
Which one among the following colors has the highest wavelength?
(a) Violet
(b) Green
(c) Yellow
(d) Red
Option d – Red
A person rings a metallic bell near a strong concrete wall. He hears the echo after 0.3 s. if the sound moves with a speed of 340 m/s, how far is the wall from him?
(a) 102m
(b) 11m
(c) 51m
(d) 30m
Option c – 51m
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